Even though tap water in Tokyo is perfectly safe to drink, and in most cases indistinguishable from bottled water, the metropolitan government is concerned about the bad rap it gets from citizens who will not give it a try. In October, the Bureau of Waterworks, charged with providing clean and tasty water for Japan’s largest metropolitan area, wrapped up a 25-year-long project to connect the majority of Tokyo residents to great-tasting and specially treated water from the Tone River system.
According to an NHK article, the government agency wants to get the word out that their water is just as good as any store-bought bottled water and has asked 700 private citizens all over Tokyo to become “water monitors” and test their home’s tap water for minerals and judge its quality.